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(No Model.) 2 sheets-sheet 1.

R. 0. BROWN.

MACHINE FOR TURNING ROSETTES AND THE LIKE.

Patented Dec. 31, 18 89.

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R. 0. BROWN. MAGHINHFOR TURNING ROSETTES AND THE LIKE.

. Patented Dec. 31, 1889.

- UNITED STATES PATENT OFFICE.

RUSH O. BROWN, OF OSHKOSH, WVISOONSIN, ASSIGNOR OF ONE-HALF TO CARLTONF. YOUMANS, OF SAME PLACE.

MACHINE FORTURNING. ROSETTES OR THE LIKE.

SPECIFICATION forming part of Letters Patent No. 418,161, dated December31, 1889. Application filed April 1, 1889- Serial No. 305,602- (Nomodel.)

T at whom it may concern.-

Be it known that I, RUSH O. BROWN, a citizen of the United States,residing at the city of Oshkosh, in the county of Winnebago and State ofWisconsin, have invented certain new and useful Improvements in Machinesfor Turning Rosettes or the Like; and I do declare the following to befull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters and figures of reference marked thereon, which form a part ofthis specification.

My invention relates to improvements in a wood-turning lathe withappliances and machinery added to adapt it to the turning of rosettes,corner-casing blocks, or the like;

and the objects of my improvements are, first,

to increase the speed and accuracy with which the articles above namedmay be made; second, to increase the variety, and, third, to provide ,asmoother cutting. I attain these objects by the structure and mechanismillustrated in the accompanying drawings, in which Figure 1 is aperspective viewof the lathe. Fig. 2 is an end view, and Fig. 3 a sideview, of the knife-head. Fig. 4 shows some of the forms and shapes ofknives used. Fig. 5 is a side sectional view of portion of thetail-stock, showing manner of attaching the face-plate. Fig. 6 is afront or end view of the face-plate and connections, and Fig. 7 arelativelysmaller view of the same.

Similar-letters refer to similar-parts throughout the several views.

In my invention the rosette-block is held stationary by the tail-stockof the lathe and the cutting-knives revolve with the headstock or shaft.

'A is the knife-head, with a shank A, screwing onto the head-stock orshaft B, Fig. 3.

side that the head is running toward 0 c c c and upon an outward inclineon each opposite side c c c c. The knives e e e are set upon theinclined sides of the arms of the head, and maybe set upon one or moreof the inclines. Fig. 2 shows the knives upon one incline only. Theseknives are fastened and held upon each incline by means of the bolt 5,the head of which slides into the slot d, which is cut transversely ineach incline. Each bolt passes up through the plate f above the knives,and by means of the nutn this plate is screwed down tightly against theknives, so as to engage and fasten them in position. Any of the knivesmaybe notched similar to c, Fig. 4, so as to pass around the bolt.

By means of the above-described fastening of the knives I am enabled touse sectional or separate knives and to adjust them to any desiredposition upon the incline, or relative to each other. I can use severalseparate knives upon each incline and adjust them to a great number ofdifferent positions relative to each other, so as to make an almostendless variety of rosettes. I

E, Figs. 6 and 7, is the face-plate, and F an opening in the center toadmit the end of the arms fitting into and sliding in openings 0 0 0 0in the face-plate, and engage and hold the rosette-block in positionagainst the plate for cutting. The side and bottom bars m m are adjustedforward and back from the center by means of the thumb or hand screws ZZ, which turn in collars attached to or integral with the faceplate at pp and screw through each slide or arm. The top slide or arm m" isadjusted and moved toward the center by means of the rods 7' r,attaching thereto at a: w, andpassing'from the top down throughperpendicular openings in the plate E. These rods arejoined or twistedtogether below the frame of the lathe and terminate in a foot stirrup ortreadle 20.

In operating the machine I first slide the rosette-block in upon thelower arm or bar m, which has been adjusted to center the blockperpendicularly, and against the side bar m, which is adjusted to centerthe block laterally. Then by pressing down with the foot upon thetreadle w, I bring the top bar m". down to engage the block and hold itin position, and the cross-pieced catches in one of the cogs of theratchet-bar R to retain it, and the springs z 2 at the tops of the rodsare at the same time compressed. Then by means of the tail-screw of thelathe P, I move the block toward and upon the knives until it isfinished. Then in the same manner, moving the block away from theknives, I loosen the, treadle by pushing it away from the ratchet-bar R,and the rods 0' r are raised by the'springs z 2, at the same timeraising the bar m torelease the rosette block. The nuts y y'screw ontothe tops of the rods r r and down sufficiently to adjust thepower of thesprings properly. The sliding'bars or "arms' m mlm are beveled upon theinside,

(engagin edges 2* 2- 2, Fig. 7, so as to adapt them to "blocks of avarying or different thickness.

' Iclaim as an important feature of my invent-ionthe inclination of theknives in the dire ction'toward which the knife-head turns,

thereby providing an inclined cut across the grain of the wood, whichrenders it'mu'ch smoother and requires no fini'shin g ors'andin g.

By my'adjustment' of knivesan almost endless variety of rosettes can beturned, and by the mechanism above described great speed can'be attainedboth in the revolution of t-he'knives to cut the rosette and in thelike, a gripping device for the block to be operated upon, comprisingtwo supportingarms adjustable to and from the center, a clamping-barnormally retracted from the center by a spring, a presser-rod forforcing the clamping-bar toward the center so as to grip the block, anda detent for looking it in variable positions of adjustment, as and forthe purpose described.

r 3. In a machine for turning rosettes or the like, a gripping devicefor the block to be operated upon, comprising a recessed stock D andco-operating pin G, face-plate E, adapted to be clamped thereby,adjustable supports m m", clamp-harm, arm for operating it, and

'detent for locking the arm in variable positions of adjustment whenclamping ablock.

4. In a machine for turning rosettes or the like, a face-plate for atail-stock provided with adjustable supporting and gripping bars forholdinga block to be operated upon, said bars being provided withinteriorly-bevelcd walls, whereby they are adapted to grip blocks ofdifferent thicknesses.

In testimony whereof I affix my signature in presence of witnesses.

RUSH 0. BROWN. Witnesses: I

OFF. YOUMANS, W. W. WArERHousE, CHARLES J. SCHMITT.

